The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2016
Filed:
Jan. 17, 2013
Method and damping device for vibration damping of a blade of a turbomachine as well as turbomachine
Applicant:
Mtu Aero Engines Gmbh, Munich, DE;
Inventor:
Ulrich Retze, Eichenau, DE;
Assignee:
MTU AERO ENGINES GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/16 (2006.01); F01D 25/06 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F01D 25/06 (2013.01); F01D 5/16 (2013.01); F04D 29/668 (2013.01); F05D 2260/96 (2013.01); Y02T 50/672 (2013.01);
Abstract
A method for vibration damping of at least one blade of a turbomachine, wherein initially at least one damping element is arranged on the blade such that it can move in the axial direction, employs a damping element having a larger permeability constant than the blade (μ>μ), and then a magnetic field acting in the radial direction is generated at least temporarily during rotation of a rotor hub of the turbomachine in order to adjust the mass of the damping element in real time. A damping device includes, for example, a ferromagnetic damping element as well as a magnetic field source, and a turbomachine.